package cn.studyjams.s1.contest.autohello;


import android.annotation.TargetApi;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.RingtonePreference;
import android.support.design.widget.Snackbar;
import android.support.v4.app.NavUtils;
import android.support.v7.app.ActionBar;
import android.support.v7.widget.Toolbar;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.widget.EditText;

import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.UUID;

import cn.studyjams.s1.contest.autohello.model.Feedback;

/**
 * A {@link PreferenceActivity} that presents a set of application settings. On
 * handset devices, settings are presented as a single list. On tablets,
 * settings are split by category, with category headers shown to the left of
 * the list of settings.
 * <p>
 * See <a href="http://developer.android.com/design/patterns/settings.html">
 * Android Design: Settings</a> for design guidelines and the <a
 * href="http://developer.android.com/guide/topics/ui/settings.html">Settings
 * API Guide</a> for more information on developing a Settings UI.
 */
public class SettingsActivity extends AppCompatPreferenceActivity {

    private final static String TAG = "SettingsActivity";

    private static DatabaseReference mDatabaseRef;
    private static FirebaseUser user;
    /**
     * A preference value change listener that updates the preference's summary
     * to reflect its new value.
     */
    private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object value) {
            String stringValue = value.toString();

            if (preference instanceof ListPreference) {
                // For list preferences, look up the correct display value in
                // the preference's 'entries' list.
                ListPreference listPreference = (ListPreference) preference;
                int index = listPreference.findIndexOfValue(stringValue);

                // Set the summary to reflect the new value.
                preference.setSummary(
                        index >= 0
                                ? listPreference.getEntries()[index]
                                : null);

            } else if (preference instanceof RingtonePreference) {
                // For ringtone preferences, look up the correct display value
                // using RingtoneManager.
                if (TextUtils.isEmpty(stringValue)) {
                    // Empty values correspond to 'silent' (no ringtone).
                    preference.setSummary(R.string.pref_ringtone_silent);

                } else {
                    Ringtone ringtone = RingtoneManager.getRingtone(
                            preference.getContext(), Uri.parse(stringValue));

                    if (ringtone == null) {
                        // Clear the summary if there was a lookup error.
                        preference.setSummary(null);
                    } else {
                        // Set the summary to reflect the new ringtone display
                        // name.
                        String name = ringtone.getTitle(preference.getContext());
                        preference.setSummary(name);
                    }
                }

            } else {
                // For all other preferences, set the summary to the value's
                // simple string representation.
                preference.setSummary(stringValue);
            }
            return true;
        }
    };

    /**
     * Binds a preference's summary to its value. More specifically, when the
     * preference's value is changed, its summary (line of text below the
     * preference title) is updated to reflect the value. The summary is also
     * immediately updated upon calling this method. The exact display format is
     * dependent on the type of preference.
     *
     * @see #sBindPreferenceSummaryToValueListener
     */
    private static void bindPreferenceSummaryToValue(Preference preference) {
        // Set the listener to watch for value changes.
        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);

        // Trigger the listener immediately with the preference's
        // current value.
        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference,
                PreferenceManager
                        .getDefaultSharedPreferences(preference.getContext())
                        .getString(preference.getKey(), ""));
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setupActionBar();

        user = FirebaseAuth.getInstance().getCurrentUser();
        if (user != null) {
            mDatabaseRef = FirebaseDatabase.getInstance().getReference()
                    .child("feedback")
                    .child(user.getUid())
                    .child(UUID.randomUUID().toString());
        }
    }

    /**
     * Set up the {@link android.app.ActionBar}, if the API is available.
     */
    private void setupActionBar() {

        ViewGroup rootView = (ViewGroup) findViewById(R.id.action_bar_root); //id from appcompat

        if (rootView != null) {
            View view = getLayoutInflater().inflate(R.layout.settings_toolbar, rootView, false);
            rootView.addView(view, 0);

            Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
            setSupportActionBar(toolbar);
        }

        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            // Show the Up button in the action bar.
            actionBar.setDisplayHomeAsUpEnabled(true);
        }
    }

    @Override
    public boolean onMenuItemSelected(int featureId, MenuItem item) {
        int id = item.getItemId();
        if (id == android.R.id.home) {
            if (!super.onMenuItemSelected(featureId, item)) {
                NavUtils.navigateUpFromSameTask(this);
            }
            return true;
        }
        return super.onMenuItemSelected(featureId, item);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
    public void onBuildHeaders(List<Header> target) {
        loadHeadersFromResource(R.xml.pref_headers, target);
    }

    /**
     * This method stops fragment injection in malicious applications.
     * Make sure to deny any unknown fragments here.
     */
    protected boolean isValidFragment(String fragmentName) {
        return PreferenceFragment.class.getName().equals(fragmentName)
                || DangerPreferenceFragment.class.getName().equals(fragmentName)
                || NotificationPreferenceFragment.class.getName().equals(fragmentName)
                || AboutPreferenceFragment.class.getName().equals(fragmentName)
                || QAPreferenceFragment.class.getName().equals(fragmentName);
    }

    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
    public static class DangerPreferenceFragment extends PreferenceFragment {
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.xml.pref_danger);
            setHasOptionsMenu(true);

            // Bind the summaries of EditText/List/Dialog/Ringtone preferences
            // to their values. When their values change, their summaries are
            // updated to reflect the new value, per the Android Design
            // guidelines.
//            bindPreferenceSummaryToValue(findPreference("example_text"));
//            bindPreferenceSummaryToValue(findPreference("example_list"));
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            int id = item.getItemId();
            if (id == android.R.id.home) {
                startActivity(new Intent(getActivity(), SettingsActivity.class));
                return true;
            }
            return super.onOptionsItemSelected(item);
        }
    }

    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
    public static class NotificationPreferenceFragment extends PreferenceFragment {
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.xml.pref_notification);
            setHasOptionsMenu(true);

            // Bind the summaries of EditText/List/Dialog/Ringtone preferences
            // to their values. When their values change, their summaries are
            // updated to reflect the new value, per the Android Design
            // guidelines.
            bindPreferenceSummaryToValue(findPreference("notifications_new_message_ringtone"));
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            int id = item.getItemId();
            if (id == android.R.id.home) {
                startActivity(new Intent(getActivity(), SettingsActivity.class));
                return true;
            }
            return super.onOptionsItemSelected(item);
        }
    }

    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
    public static class AboutPreferenceFragment extends PreferenceFragment implements Preference.OnPreferenceClickListener {
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.xml.pref_about);
            setHasOptionsMenu(true);

            findPreference("terms_of_use").setOnPreferenceClickListener(this);
            findPreference("privacy_policy").setOnPreferenceClickListener(this);
            findPreference("licenses").setOnPreferenceClickListener(this);
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            int id = item.getItemId();
            if (id == android.R.id.home) {
                startActivity(new Intent(getActivity(), SettingsActivity.class));
                return true;
            }
            return super.onOptionsItemSelected(item);
        }

        @Override
        public boolean onPreferenceClick(Preference preference) {

            View view = LayoutInflater.from(getActivity()).inflate(R.layout.fragment_webview, null);

            WebView wv = (WebView) view.findViewById(R.id.qa_web);
            wv.setWebChromeClient(new WebChromeClient());

            String title = "";

            if (preference.getKey().equals("terms_of_use")) {
                wv.loadUrl("https://autohello-44b3d.firebaseapp.com/terms.html");
                title = getString(R.string.pref_title_terms_of_use);
            }

            if (preference.getKey().equals("privacy_policy")) {
                wv.loadUrl("https://autohello-44b3d.firebaseapp.com/privacy.html");
                title = getString(R.string.pref_title_privacy_policy);
            }

            if (preference.getKey().equals("licenses")) {
                wv.loadUrl("https://autohello-44b3d.firebaseapp.com/licenses.html");
                title = getString(R.string.pref_title_licenses);
            }

            AlertDialog.Builder builder = new AlertDialog.Builder(getActivity())
                    .setView(view)
                    .setTitle(title)
                    .setCancelable(true)
                    .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int i) {
                            dialog.dismiss();
                        }
                    });
            builder.show();

            return true;
        }
    }

    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
    public static class QAPreferenceFragment extends PreferenceFragment implements Preference.OnPreferenceClickListener {

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.xml.pref_qa);
            setHasOptionsMenu(true);

            findPreference("qa").setOnPreferenceClickListener(this);
            findPreference("feedback").setOnPreferenceClickListener(this);
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            int id = item.getItemId();
            if (id == android.R.id.home) {
                startActivity(new Intent(getActivity(), SettingsActivity.class));
                return true;
            }
            return super.onOptionsItemSelected(item);
        }

        @Override
        public boolean onPreferenceClick(Preference preference) {
            if (preference.getKey().equals("qa")) {
                Log.d(TAG, "qa");
                View view = LayoutInflater.from(getActivity()).inflate(R.layout.fragment_webview, null);

                WebView wv = (WebView) view.findViewById(R.id.qa_web);
                wv.loadUrl("https://autohello-44b3d.firebaseapp.com/qa.html");
                wv.setWebChromeClient(new WebChromeClient());

                AlertDialog.Builder builder = new AlertDialog.Builder(getActivity())
                        .setView(view)
                        .setTitle(getString(R.string.pref_title_qa))
                        .setCancelable(true)
                        .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int i) {
                                dialog.dismiss();
                            }
                        });
                builder.show();
            }

            if (preference.getKey().equals("feedback")) {
                Log.d(TAG, "feedback");
                final View view = LayoutInflater.from(getActivity()).inflate(R.layout.fragment_feedback, null);

                final EditText content = (EditText) view.findViewById(R.id.feedback_edittext);

                AlertDialog.Builder builder = new AlertDialog.Builder(getActivity())
                        .setView(view)
                        .setTitle(getString(R.string.pref_title_feedback))
                        .setPositiveButton(R.string.done, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int i) {
                                if (TextUtils.isEmpty(content.getText().toString())) {
                                    Log.d(TAG, "empty");
                                } else {
                                    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm", Locale.getDefault());
                                    if (user != null && mDatabaseRef != null) {
                                        Feedback feedback = new Feedback(
                                                user.getUid(),
                                                user.getDisplayName(),
                                                user.getEmail(),
                                                content.getText().toString(),
                                                sdf.format(new Date()),
                                                "",
                                                ""
                                        );
                                        mDatabaseRef.setValue(feedback).addOnSuccessListener(new OnSuccessListener<Void>() {
                                            @Override
                                            public void onSuccess(Void aVoid) {
                                                Snackbar.make(view, getString(R.string.feedback_success), Snackbar.LENGTH_LONG).show();
                                            }
                                        });
                                    } else {
                                        Snackbar.make(view, getString(R.string.feedback_fail), Snackbar.LENGTH_LONG).show();
                                    }
                                    Log.d(TAG, content.getText().toString());
                                }
                            }
                        });
                builder.show();
            }
            return true;
        }
    }
}
